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Simon Peyton Jones authored
If we float a binding out of a *value* lambda, the fixing-up of IdInfo is a bit more complicated than before. Since in principle FloatOut can do this (and thus can do full lambda lifting), it's imporrtant that transferPolyIdInfo does the Right Thing. This doensn't matter unless you use FloatOut's abilty to lambda-lift, which GHC mostly doesn't, yet. But Max used it and tripped over this bug.
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